Hi! I have sent an analog project to the MPW-2 and now I have the fabricated chip back. All my inputs/outputs are analog_noesd. I'd like to ask how I should use it. I mean, can I use the pins directly or should I to program the SoC in some manner to switch the IO pins to analgo_esd mode? Thank you in advance.

I guess you have to configure the pins as input but that's probably the default configuration. So most probably you can just use them. However, I'm not an expert.

There is a specific configuration for analog; see

verilog/dv/caravel/defs.h

in the caravel repository:

GPIO_MODE_USER_STD_ANALOG

is the string equivalent of the configuration setting

0x000a

that turns off all the digital buffers, both input and output.